Means for removing water from boats



Feb. 14, 1933. MCEACHERN 1,897,524

MEANS FOR REMOVING WATER FROM BOATS Filed Dec. 16, 1951 E INVENTOR.

DOUGAL 0 /1c 5 case.

BY M 601 A TTORNEYS.

Patented Feb. 14, 1933 UNITED STATES DOUGALD MCEACHER-N, OF DUNGANS,BRITISH COLUMBIA, CANADA MEANS FOR REMOVING WATER FROM BOATS Applicationfiled December 16, 1931. Serial No. 581,427.

My invention relates to improvements in means for removing water fromboats, and 1t consists of the combinations, constructions andarrangements hereinafter described and claimed.

An object of my invention is to provlde a means for removing water fromboats, which provides a sump into which water within the boat can drain,and a passageway leading 1 from the sump to a position adjacent thepropeller, whereby the suction created by the rotating propeller and thesuction created by the boat moving through the water will entrain waterfrom the passageway and thus automatically remove water from the boat. Apart of the water passageway constitutes a pipe that is movable from anoperative position adjacent to the propeller into an inopera- 2 tiveposition, where the pipe will be flush with the exterior surface of theboat. This prevents the pipe from catching foreign matter when not inuse and also eliminates the water resistance of the pipe.

A check valve is placed in the water passageway and prevents the backflow of water into the interior of the boat.

Other objects and advantages will appear in the following specification.and the novel features of the device will be particularly pointed out inthe appended claims.

My invention is illustrated in the accompanying drawing forming a partof this application, in which Figure 1 is a side elevation of a boatshowing the device operatively applied;

Figure 2 is an enlarged view of the device; and

Figure 3 is an enlarged sectional view of a part of the device.

In carrying out my invention, I make use of a boat, indicated generallyat 1. Figure 2 shows how a sump 2 is provided in the lowermost portionof the boat and further shows a pipe 3 leading from the sump toward thestern of the boat. The pipe 3 is made up of any number of sections,which may telescope one within another. I have shown two sections 3a and35. Figure 3 shows the section 3?) sliding within the section 3a andfurther shows how the ends of the sections are proplaced in the videdwith packing rings 4 for preventing leakage. The ringst are received inflanges 5, and the latter abut each other when the section 3?) is fullyextended and act as astop.

It is obvious that other means for limiting 53 the movement of thesection 322 in both direc tions can be employed.

In small boats, manually-controlled means may be'used for moving thepipe section 3?), while in larger boats, hydraulic means can to be used.Figure 2 shows a manually-actuated lever 6 pivoted at 7 and connected tothe pipe section 36 by a collar 8 and a link 9. A movement of the lever6 in one direction will cause the pipe section 35 to project into the 5full-line position, shown in Figure 2. The lever 6 may be moved forcausing the end of the section 3?) to be retracted until it lies flushwith the stern of the boat. A packing gland 10 is placed at the sternand surrounds the pipe section 36. A check valve 11 is placed in thepipe section 3?) and permits water to flow only in one direction, andthat is toward the outlet end of the section 3?).

A manually-controlled valve 12 may also be pipe section 3a and may beclosed when the device is not in use.

From the foregoing description of the various parts of the device, theoperation thereof may be readily understood.

Figure 2 shows a boat propeller 13 mounted on a propeller shaft 14, andthe shaft extends through a housing 15 and is connected to the powerplant of the boat, not shown. r When the device is in use, the pipesection 37) is extended so as to dispose the outlet end adjacent to thepropeller 13. The rotation of the propeller and the movement of the boatthrough the water will create suction, which will entrain any water inthe pipe sections 3a and 3b. In this way, the water is automatt callyremoved from the sump 2. The check valve 11 functions to prevent theback flow of water into the sump 2.

l/Vhen the device is not in use, the pipe section 3?) is moved so thatits outlet end is flush with the stern of the boat, and, if desired, thevalve 12 may be closed.

While I have shown only the preferred form of my invention, it should beunderstood that various changes or modifications may be made Within thescope of the appended claims Without departing from the spirit of theinvention.

I claim:

1. A boat having a pipe leading from the lowermost interior part of theboat to the exterior thereof, and means for creating a suction in thepipe for conveying water out of the boat, the pipe including a rearsection adapted to telescope into the adjacent front section, means foractuating the rear section and means for limiting rearward movement ofsaid section.

2. The combination With a boat having a propeller, of a water-conveyingconduit leading from an interior part of the boat to the stern andhaving a rear end of uniform crosssection, and means for extending therear end of the conduit from a position flush With the outer surface ofthe looat into one adjacent to the propeller, whereby suction created bythe propeller and the moving boat will entrain Water from the conduit.

DOUGALD Mc'EACI-IERN.

